Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-45944

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down context entry When tearing down a context entry, the current implementation zeros the entire 128-bit entry using multiple 64-bit writes. This creates a window where the hardware can fetch a "torn" entry — where some fields are already zeroed while the 'Present' bit is still set — leading to unpredictable behavior or spurious faults. While x86 provides strong write ordering, th
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1aab3aa6f81801bd2161a8d75daa96cf99f9fbabeed8bac6436f5fda9264920e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iommu/intel/iommu.c","drivers/iommu/intel/iommu.h","drivers/iommu/intel/pasid.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c716a59e9977d751e5eb54bcfa6a80124cb5067b","status":"affected","version":"ba39592764ed20cee09aae5352e603a27bf56b0d","versionType":"git"},{"lessThan":"d2138abc8f0a7fce4101b7229b43b06811ed083d","status":"affected","version":"ba39592764ed20cee09aae5352e603a27bf56b0d","versionType":"git"},{"lessThan":"a922dbafb4a674d958d702038232d09…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d7b6c4d7f2b86821b56a755830525b7edc1699306f4941b3acad3328f20a395c · sha256:47bf4ab8fdd11332… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iommu/intel/iommu.c","drivers/iommu/intel/iommu.h","drivers/iommu/intel/pasid.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.24"},{"lessThan":"2.6.24","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.97","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","statu…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d7b6c4d7f2b86821b56a755830525b7edc1699306f4941b3acad3328f20a395c · sha256:47bf4ab8fdd11332… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iommu/intel/iommu.c","drivers/iommu/intel/iommu.h","drivers/iommu/intel/pasid.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c716a59e9977d751e5eb54bcfa6a80124cb5067b","status":"affected","version":"ba39592764ed20cee09aae5352e603a27bf56b0d","versionType":"git"},{"lessThan":"d2138abc8f0a7fce4101b7229b43b06811ed083d","status":"affected","version":"ba39592764ed20cee09aae5352e603a27bf56b0d","versionType":"git"},{"lessThan":"a922dbafb4a674d958d702038232d09…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d7b6c4d7f2b86821b56a755830525b7edc1699306f4941b3acad3328f20a395c · sha256:47bf4ab8fdd11332… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iommu/intel/iommu.c","drivers/iommu/intel/iommu.h","drivers/iommu/intel/pasid.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.24"},{"lessThan":"2.6.24","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.97","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","statu…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d7b6c4d7f2b86821b56a755830525b7edc1699306f4941b3acad3328f20a395c · sha256:47bf4ab8fdd11332… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d7b6c4d7f2b86821b56a755830525b7edc1699306f4941b3acad3328f20a395c · sha256:47bf4ab8fdd11332… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/a922dbafb4a674d958d702038232d09a30daf770"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d7b6c4d7f2b86821b56a755830525b7edc1699306f4941b3acad3328f20a395c · sha256:47bf4ab8fdd11332… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/c1e4f1dccbe9d7656d1c6872ebeadb5992d0aaa2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d7b6c4d7f2b86821b56a755830525b7edc1699306f4941b3acad3328f20a395c · sha256:47bf4ab8fdd11332… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/c716a59e9977d751e5eb54bcfa6a80124cb5067b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d7b6c4d7f2b86821b56a755830525b7edc1699306f4941b3acad3328f20a395c · sha256:47bf4ab8fdd11332… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/d2138abc8f0a7fce4101b7229b43b06811ed083d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d7b6c4d7f2b86821b56a755830525b7edc1699306f4941b3acad3328f20a395c · sha256:47bf4ab8fdd11332… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer